Patents by Inventor Stephen R. Polgar
Stephen R. Polgar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10952785Abstract: An electrosurgical hand piece device is configured to cut tissue with monopolar RF energy to extract a medical lead submersed in fluid. The device includes an electrode surrounded by an electrically insulating coating that can be exposed from a distal edge of the electrode when power is supplied to the device, thereby focusing the energy at the distal edge and enabling tissue to be more easily and safely cut from around the medical lead while in fluid.Type: GrantFiled: July 28, 2017Date of Patent: March 23, 2021Assignee: MEDTRONIC ADVANCED ENERGY, LLCInventors: Nathan Zamarripa, Mark M. Guirguis, Jessica Sacks, Brian M. Conley, Stephen R. Polgar
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Publication number: 20180028258Abstract: An electrosurgical hand piece device is configured to cut tissue with monopolar RF energy to extract a medical lead submersed in fluid. The device includes an electrode surrounded by an electrically insulating coating that can be exposed from a distal edge of the electrode when power is supplied to the device, thereby focusing the energy at the distal edge and enabling tissue to be more easily and safely cut from around the medical lead while in fluid.Type: ApplicationFiled: July 28, 2017Publication date: February 1, 2018Inventors: Nathan ZAMARRIPA, Mark M. GUIRGUIS, Jessica SACKS, Brian M. CONLEY, Stephen R. POLGAR
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Patent number: 9517129Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured to be received in the lumen, and a latching mechanism configured to be received in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit a torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity configured to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.Type: GrantFiled: August 13, 2013Date of Patent: December 13, 2016Assignee: Cardio Solutions, Inc.Inventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar
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Publication number: 20140207230Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured to be received in the lumen, and a latching mechanism configured to be received in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit a torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity configured to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.Type: ApplicationFiled: August 13, 2013Publication date: July 24, 2014Applicant: CARDIOSOLUTIONSInventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar
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Patent number: 8506623Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured for receipt in the lumen, and a latching mechanism configured for receipt in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.Type: GrantFiled: July 10, 2012Date of Patent: August 13, 2013Assignee: Cardiosolutions, Inc.Inventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar
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Publication number: 20130041459Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured for receipt in the lumen, and a latching mechanism configured for receipt in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.Type: ApplicationFiled: July 10, 2012Publication date: February 14, 2013Applicant: CARDIOSOLUTIONSInventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar
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Patent number: 8216302Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured to be received in the lumen, and a latching mechanism configured to be received in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit a torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity configured to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.Type: GrantFiled: April 28, 2009Date of Patent: July 10, 2012Assignee: Cardiosolutions, Inc.Inventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar
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Publication number: 20090240326Abstract: An implant delivery system comprising a catheter including at least one lumen, an implant configured to be received in the lumen, and a latching mechanism configured to be received in the implant. The latching mechanism may be configured to releasably couple the implant to a delivery wire and to transmit a torque through the delivery wire to cause at least a portion of the implant to rotate. The an implant may comprise a shaft, a spacer configured to interact with at least a portion of at least one cusp of a heart valve to at least partially restrict a flow of blood through the heart valve in a closed position, a garage configured to couple the spacer to a first end region of the shaft, and at least one anchor mechanism. The garage may define a cavity configured to receive the latching mechanism and to increase rotational and translational stability of the latching mechanism.Type: ApplicationFiled: April 28, 2009Publication date: September 24, 2009Applicant: CARDIOSOLUTIONSInventors: Jonathan E. Wilson, Robert J. St. John, Stephen R. Polgar